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CAUSE SOLUTION
CUTTING BLADE REPLACEMENT/INSTALLATION
Always use original equipment manufacturer replacement
blades. Blades other than those specified may make the motor
overheat or fail. This unit uses four (4) green cutting blades.
Removing the Cutting Blades
1. Remove the cutting head cap by pressing in on both
cap tabs and then pulling down on the cap. (Fig. 13)
2. Turn the cutting head over and grab an individual blade
near the cutting head and wiggle it up and down until
blade comes loose. (Fig. 14)
3. Repeat step 2 until all blades are removed.
Installing the Cutting Blades
4. Take the new blade so that the loop at the end is facing
away and to the right. (Fig. 14)
5. Place the loop onto the peg and adjust it so that it fits
into the slot on the cutting head. (Fig. 14)
6. Press down on the loop end of the blade till it is securely
in place.
7. Repeat steps 4 thru 6 until all 4 blades are in place. (Fig. 14)
8. Replace the cutting head cap, making sure to align the cap tabs with the cutting head tab slots.
(Fig. 15)
CHARGER MAINTENANCE
• Keep the charger clean and clear of debris. Do not allow foreign material into the recessed cavity
or on the contacts.
• Wipe with a dry cloth. Do not use solvents, water or place in wet conditions.
• Always unplug the charger when not in use.
• The battery pack may be stored in the charger. However, it is recommended to disconnect the
charger from the power source.
• To ensure safety and reliability, all repairs should be performed by a qualified service technician.
• Check that the charger contacts have not been shorted by debris or foreign material.
• Keep the charger and battery pack in an area that is between 65 and 75˚ F (18 and 24˚ C).
ENVIRONMENTALLY SAFE BATTERY DISPOSAL
To avoid damage to the environment:
• DO NOT attempt to remove or destroy any of the battery pack components.
• DO NOT open or mutilate the battery. Released electrolyte is corrosive and may cause damage to
the eyes or skin. It may be toxic if swallowed.
• DO NOT place the battery pack in the regular household trash.
• DO NOT dispose of the battery in a fire. The cell may explode.
• DO NOT place them where they will become part of any waste landfill or municipal solid waste stream.
• Cover the battery terminals with heavy-duty adhesive tape.
• If a leak develops, the released electrolytes are corrosive and toxic. DO NOT get the solution in
your eyes or on your skin, and do not swallow it.
• Dispose of the battery pack in accordance with local, state and federal regulations.
The battery lacks sufficient charge Charge the battery
CLEANING INSTRUCTIONS
1. Stop the motor and wait for all moving parts to stop.
2. Remove the battery from the unit.
3. Wipe the unit down with a damp cloth. Do not douse the unit with water. Do not use solvents or
strong detergents.
4. Scrape the guard and spool area to remove dried clippings and mud.
5. Brush or blow dust, debris and grass clippings out of the air vents. Keep them free or obstructions
STORAGE INSTRUCTIONS
1. Follow the Cleaning Instructions listed above.
2. Store the unit indoors in a dry, high and/or locked location, out of the reach of children and other
unauthorized persons.
MAINTENANCE AND REPAIR INSTRUCTIONS
WARNING: Do not let brake fluids, gasoline, petroleum-based products, penetrating oils,
etc., come in contact with plastic parts. These chemicals may damage, weaken and
destroy plastic, which may result in serious personal injury.
SPECIFICATIONS*
* All specifications are based on the latest product information available at the time of printing. We
reserve the right to make changes at any time without notice.
Motor Type. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cordless, Battery-powered
Motor Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 V
Motor Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5000 rpm
Unit Weight (with the cutting head shield and D-handle, but without the battery) . . . 8.45 lbs. (3.83 kg)
Cutting Path Diameter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 in. (35.6 cm)
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20V Lithium
Charge Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 Hours
Battery Weight. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.8 Lbs. (0.81 kg)
Optimum Charging Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32° to 86° F (0° to 30° C)
Battery Charger Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120 V 60 Hz AC only
Battery Charger Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.2 Lbs. (0.54 kg)
CLEANING AND STORAGE
WARNING: Before inspecting, cleaning, or
servicing the unit, stop the motor, wait for all
moving parts to stop and remove the battery.
Failure to follow these instructions can result in
serious personal injury or property damage.
TROUBLESHOOTING
NOTE: For maintenance beyond the minor adjustments listed above, or for replacement parts, please
call the Customer Support Department at 1-800-828-5500 (U.S.) or 1-800-668-1238 (Canada).
There is no power to the charger or battery Check the charger and charging station
The battery has failed Replace the battery
ACCESSORIES
Model #
TB20V50 . . . . . . . .
TBCHGR . . . . . . . .
. . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . .
Description
20V Lithium-ion Battery
20V Lithium-ion Battery Charger
Cutting Blades
Shoulder Strap
Part #
49MLI50Y966. . . . . . . . .
49MALBCL966. . . . . . . .
49UAFGRK703 . . . . . . .
49M7533K953 . . . . . . . .
THE BATTERY WILL NOT CHARGE
THE MOTOR OPERATES SLOWLY OR WILL NOT OPERATE
F
ig. 13
F
ig. 14
Fig. 15
WARNING: Never use metal-reinforced line,
wire, chain or rope. These can break off and
become dangerous projectiles.
Cutting
H
ead
P
eg
Cutting
Blade
Blade Slot
The following toxic and corrosive materials are used in this units battery pack:
LITHIUM-ION, a toxic material.
W
ARNING:
All toxic materials must be disposed of in a specified manner to prevent
contamination of the environment. Before disposing of damaged or worn out lithium-ion
battery packs, contact your local waste disposal agency for information and specific
instructions. Take batteries to a local recycling and or disposal center, certified for lithium-
ion battery disposal.
WARNING: Do not use the battery pack if there are cracks or if it breaks, regardless if
there is leakage or not. Replace with a new battery pack. DO NOT ATTEMPT TO REPAIR!
As this may cause severe personal injury due to explosion or electrical shock.
WARNING: To avoid risk of fire, electric shock or electrocution: DO NOT use a damp
cloth or detergent on the battery or battery charger. Wipe the outside with a dry, soft cloth.
Cap Tab
WARNING: Always install an even number
of blades (2 or 4). NEVER install an uneven
number of blades (1 or 3) as this will make the
unit unstable and hard to control, which could
result in serious personal injury.
Cap
Cap Tab
Cutting Head
Tab Slots